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HD 145133


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Ca II H and K Photometry on the UVBY System. III. The Metallicity Calibration for the Red Giants
New photometry on the uvby Ca system is presented for over 300 stars.When combined with previous data, the sample is used to calibrate themetallicity dependence of the hk index for cooler, evolved stars. Themetallicity scale is based upon the standardized merger of spectroscopicabundances from 38 studies since 1983, providing an overlap of 122evolved stars with the photometric catalog. The hk index producesreliable abundances for stars in the [Fe/H] range from -0.8 to -3.4,losing sensitivity among cooler stars due to saturation effects athigher [Fe/H], as expected.

Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

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Observation and Astrometry data

Constellation:Σκορπιός
Right ascension:16h10m35.32s
Declination:-33°25'53.6"
Apparent magnitude:8.809
Distance:781.25 parsecs
Proper motion RA:-15.3
Proper motion Dec:-10.1
B-T magnitude:10.143
V-T magnitude:8.92

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 145133
TYCHO-2 2000TYC 7334-1744-1
USNO-A2.0USNO-A2 0525-21626137
HIPHIP 79257

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